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<head>
<meta charset="utf-8">
<title>二级下拉导航菜单示例</title>
<link href="css/20-3.css" type="text/css" rel="stylesheet"/>
<script src="js/20-3.js" type="text/javascript"></script>
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<body>
  <div id="nav">
    <ul>
    	<li class="menu">菜单项1
         <ul class="subMenu">
        	<li><a href="#">菜单项11</a></li>
            <li class="last"><a href="#">菜单项12</a></li>
          </ul>
        </li>
        <li class="menu">菜单项2
          <ul class="subMenu">
            <li><a href="#">菜单项21</a></li>
            <li><a href="#">菜单项22</a></li>
            <li class="last"><a href="#">菜单项23</a></li>
          </ul>
        </li>
        <li class="menu"><a href="#">菜单项3</a></li>
        <li class="menu"><a href="#">菜单项4</a></li>
        <li class="menu"><a href="#">菜单项5</a></li>        
       <li class="menu"><a href="#">菜单项6</a></li>
     </ul>
  </div>
</body>
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